660MW Single Auxiliary Ultra-Supercritical Unit Main Stream’s Temperature Control Strategy Optimization Studies

Abstract:

2 × 660MW ultra-supercritical units of O'Brien Power Plant are single configuration of auxiliary pilot project, due to the higher its parameters and performance requirements, it need better control strategies to ensure safe and economical operation. Against traditional cascade PID main steam’s temperature control system delaying large, this article proposed control strategy based on Smith estimated. Main steam’s temperature controlled object inert zone mathematical model can be showed by multi-volume model, and use the improved system for large inertia Smith Predictor to make dynamic parameter control systems improvements. Simulation results of the simulation machine show that: Optimization emperor steam temperature control is in an adjustable range and the policy in separate auxiliary units is feasible.

• Periodical: Advanced Materials Research (Volume 909)
• Pages: 317-322
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.909.317
• Online since: March 2014
• Authors: Huan Pao Huang, Ji An Yu, Qian Su, Lei Wang
• Keywords: Main Steam’s Temperature Control Strategy, Optimization, Single Auxiliary, Smith Estimates, Ultra-Supercritical

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